Propagation environment notification methods and notification systems in radio communication systems, and record media recording control programs thereof

A propagation environment notification system in a radio communication system constituted by a radio base station and a radio terminal, comprising:

• condition sending means for sending conditions about the user's area layout from a user terminal to a server via a communication line;
• information generating means for generating said user's area radio propagation environment information based on said conditions by said server receiving said conditions;
• and
• information sending means for sending said radio propagation environment information from said server to said user terminal via the communication line.

A record medium recording therein a control program of a propagation environment notification method in a radio communication system constituted by a radio base station and a radio terminal, said propagation environment notification method comprising:

• a first step of sending conditions about the user's area layout from a user terminal to a server via a communication line;
• a second step of generating said user's area radio propagation environment information based on said conditions by said server receiving said conditions;
• and
• a third step of sending said radio propagation environment information from said server to said user terminal via the communication line,
• wherein said first step is comprised of:
• a twenty-first step of performing input and edition of user conditions (said user's area appliance placement information and said radio base station information);
• a twenty-second step of making a determination on whether or not said user's conditions are correctly inputted;
• a twenty-third step of making a determination on completion of said input of conditions;
• a twenty-fourth step of converting said input conditions into formats capable of being used on said server's part;
• and
• a condition inputting step of inputting said conditions by said user terminal;
• and
• a control program comprised of these twenty-first to twenty-fourth steps is recorded in said record medium.

A record medium recording therein a control program of a propagation environment notification method in a radio communication system constituted by a radio base station and a radio terminal, said propagation environment notification method comprising:

• a first step of sending conditions about the user's area layout from a user terminal to a server via a communication line;
• a second step of generating said user's area radio propagation environment information based on said conditions by said server receiving said conditions;
• and
• a third step of sending said radio propagation environment information from said server to said user terminal via the communication line, wherein said second step is comprised of:
• a forty-first step of defining the number of observation areas M for an observation area ID that is a variable for identifying observation areas;
• a forty-second step of using ray tracing to estimate a propagation property in the observation area defined by said observation area ID;
• a forty-third step of storing the receipt electric power and delay variance equivalent to the result obtained in said forty-second step in propagation property data having an arrangement with said observation area ID as an index;
• a forty-fourth step of subtracting 1 from said observation area ID;
• a forty-fifth step of making a determination on whether or not said observation area ID is greater than 1;
• and
• a forty-sixth step of making a determination on possibility of communication in each observation area if said observation area ID is smaller than 1 as a result of this determination, and a control program comprised of these forty-first to forty-sixth steps is recorded in said record medium.